Lomatium extracts with the resins removed (often called lomatium isolates), 1–3 ml per day, have been recommended. Lomatium tincture, 1–3 ml three times per day, can also be used, but it may cause a rash in susceptible people. The tincture should not be used unless a very small amount of it is first tested for a reaction. However, even very small amounts can cause a reaction in sensitive people.